rs1226490074
Variant summary
Our verdict is Benign. Variant got -9 ACMG points: 2P and 11B. PM2BP4_ModerateBP6_Very_StrongBP7
The NM_000368.5(TSC1):c.2760C>T(p.Asp920=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )
Consequence
TSC1
NM_000368.5 synonymous
NM_000368.5 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: 1.49
Genes affected
TSC1 (HGNC:12362): (TSC complex subunit 1) This gene is a tumor suppressor gene that encodes the growth inhibitory protein hamartin. The encoded protein interacts with and stabilizes the GTPase activating protein tuberin. This hamartin-tuberin complex negatively regulates mammalian target of rapamycin complex 1 (mTORC1) signaling which is a major regulator of anabolic cell growth. This protein also functions as a co-chaperone for Hsp90 that inhibits its ATPase activity. This protein functions as a facilitator of Hsp90-mediated folding of kinase and non-kinase clients, including TSC2 and thereby preventing their ubiquitination and proteasomal degradation. Mutations in this gene have been associated with tuberous sclerosis and lymphangioleiomyomatosis. [provided by RefSeq, May 2022]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -9 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.45).
BP6
?
Variant 9-132897476-G-A is Benign according to our data. Variant chr9-132897476-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 466098.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
?
Synonymous conserved (PhyloP=1.49 with no splicing effect.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TSC1 | NM_000368.5 | c.2760C>T | p.Asp920= | synonymous_variant | 21/23 | ENST00000298552.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TSC1 | ENST00000298552.9 | c.2760C>T | p.Asp920= | synonymous_variant | 21/23 | 1 | NM_000368.5 | P4 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1461890Hom.: 0 Cov.: 36 AF XY: 0.00000275 AC XY: 2AN XY: 727246
GnomAD4 exome
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2
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1461890
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36
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2
AN XY:
727246
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GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
Bravo
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ClinVar
Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Tuberous sclerosis syndrome Benign:1
Likely benign, criteria provided, single submitter | clinical testing | All of Us Research Program, National Institutes of Health | Jul 22, 2023 | - - |
Tuberous sclerosis 1 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Invitae | Jan 18, 2024 | - - |
Hereditary cancer-predisposing syndrome Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Nov 17, 2021 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at